Stacey C. Lum has been granted 14 US patents while listed as an inventor at Infoexpress. The first was granted in 2009 and the most recent in April 2017. Stacey C. Lum ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Stacey C. Lum in Mill Valley, CA, US.